<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>用户无效</title>
    <link rel="preconnect" href="https://fonts.googleapis.com">
    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
    <link href="https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@400;500;700&display=swap" rel="stylesheet">
    <style>
        :root {
            --oh-blue: #007DFF;
            --oh-blue-light: #4DA3FF;
            --oh-red: #FF4757;
            --oh-red-light: #FF6B7A;
            --oh-red-dark: #E8384F;
            --oh-gray-dark: #1a1a2e;
            --oh-gray: #4a4a6a;
            --oh-gray-light: #f0f4f8;
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            min-height: 100vh;
            display: flex;
            justify-content: center;
            align-items: center;
            background: var(--oh-gray-dark);
            overflow: hidden;
            position: relative;
        }

        /* 动态背景 */
        .bg-pattern {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: 0;
            background: 
                radial-gradient(ellipse at 20% 20%, rgba(255, 71, 87, 0.1) 0%, transparent 50%),
                radial-gradient(ellipse at 80% 80%, rgba(255, 71, 87, 0.08) 0%, transparent 50%),
                radial-gradient(ellipse at 50% 50%, rgba(255, 71, 87, 0.05) 0%, transparent 70%);
        }

        /* 网格线背景 */
        .grid-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: 1;
            background-image: 
                linear-gradient(rgba(255, 71, 87, 0.02) 1px, transparent 1px),
                linear-gradient(90deg, rgba(255, 71, 87, 0.02) 1px, transparent 1px);
            background-size: 60px 60px;
        }

        /* 浮动光点 */
        .floating-dots {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: 2;
            pointer-events: none;
        }

        .dot {
            position: absolute;
            width: 4px;
            height: 4px;
            background: var(--oh-red);
            border-radius: 50%;
            opacity: 0.4;
            animation: pulse 4s ease-in-out infinite;
        }

        .dot:nth-child(1) { left: 10%; top: 20%; animation-delay: 0s; }
        .dot:nth-child(2) { left: 20%; top: 80%; animation-delay: 0.5s; }
        .dot:nth-child(3) { left: 80%; top: 30%; animation-delay: 1s; }
        .dot:nth-child(4) { left: 70%; top: 70%; animation-delay: 1.5s; }
        .dot:nth-child(5) { left: 90%; top: 50%; animation-delay: 2s; }

        @keyframes pulse {
            0%, 100% { transform: scale(1); opacity: 0.4; }
            50% { transform: scale(1.8); opacity: 0.8; }
        }

        /* 主容器 */
        .container {
            position: relative;
            z-index: 10;
            background: rgba(255, 255, 255, 0.98);
            border-radius: 24px;
            padding: 48px 56px;
            max-width: 480px;
            width: 90%;
            text-align: center;
            box-shadow: 
                0 4px 24px rgba(255, 71, 87, 0.12),
                0 20px 60px rgba(0, 0, 0, 0.2);
            animation: slideUp 0.8s cubic-bezier(0.16, 1, 0.3, 1);
            border: 1px solid rgba(255, 71, 87, 0.1);
        }

        @keyframes slideUp {
            from {
                opacity: 0;
                transform: translateY(40px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        /* 顶部装饰线 */
        .container::before {
            content: '';
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 4px;
            background: linear-gradient(90deg, var(--oh-red), var(--oh-red-light));
            border-radius: 0 0 4px 4px;
        }

        /* 图标区域 */
        .icon-wrapper {
            margin-bottom: 24px;
            animation: fadeIn 0.6s ease 0.3s both;
        }

        .icon-circle {
            width: 80px;
            height: 80px;
            background: linear-gradient(135deg, var(--oh-red), var(--oh-red-light));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto;
            box-shadow: 0 8px 24px rgba(255, 71, 87, 0.3);
            animation: shake 0.6s ease 0.8s;
        }

        .icon-circle svg {
            width: 40px;
            height: 40px;
            stroke: white;
            stroke-width: 2;
            fill: none;
        }

        @keyframes shake {
            0%, 100% { transform: translateX(0); }
            20%, 60% { transform: translateX(-5px); }
            40%, 80% { transform: translateX(5px); }
        }

        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(10px); }
            to { opacity: 1; transform: translateY(0); }
        }

        /* 标题 */
        .title {
            font-size: 26px;
            font-weight: 700;
            color: var(--oh-gray-dark);
            margin-bottom: 12px;
            letter-spacing: 0.5px;
            animation: fadeIn 0.6s ease 0.4s both;
        }

        .subtitle {
            font-size: 14px;
            color: var(--oh-red);
            font-weight: 500;
            margin-bottom: 24px;
            animation: fadeIn 0.6s ease 0.5s both;
        }

        /* 分割线 */
        .divider {
            width: 60px;
            height: 2px;
            background: linear-gradient(90deg, transparent, var(--oh-red), transparent);
            margin: 0 auto 24px;
            animation: fadeIn 0.6s ease 0.5s both;
        }

        /* 信息文字 */
        .message {
            font-size: 15px;
            color: var(--oh-gray);
            line-height: 1.8;
            margin-bottom: 28px;
            animation: fadeIn 0.6s ease 0.6s both;
        }

        /* 联系信息 */
        .contact-box {
            background: var(--oh-gray-light);
            border-radius: 12px;
            padding: 16px 20px;
            animation: fadeIn 0.6s ease 0.7s both;
        }

        .contact-box p {
            font-size: 13px;
            color: var(--oh-gray);
            margin: 0;
        }

        /* 响应式 */
        @media (max-width: 480px) {
            .container {
                padding: 36px 28px;
                border-radius: 20px;
            }
            .title {
                font-size: 22px;
            }
            .icon-circle {
                width: 70px;
                height: 70px;
            }
        }
    </style>
</head>
<body>
    <div class="bg-pattern"></div>
    <div class="grid-overlay"></div>
    <div class="floating-dots">
        <div class="dot"></div>
        <div class="dot"></div>
        <div class="dot"></div>
        <div class="dot"></div>
        <div class="dot"></div>
    </div>

    <div class="container">
        <div class="icon-wrapper">
            <div class="icon-circle">
                <svg viewBox="0 0 24 24">
                    <path d="M20 21v-2a4 4 0 0 0-4-4H8a4 4 0 0 0-4 4v2"></path>
                    <circle cx="12" cy="7" r="4"></circle>
                    <line x1="4" y1="4" x2="20" y2="20" stroke-width="2.5"></line>
                </svg>
            </div>
        </div>
        <h1 class="title">用户无效</h1>
        <p class="subtitle">Invalid User</p>
        <div class="divider"></div>
        <p class="message">
            您的账户未授权或已失效<br>
            请确认您的用户身份后重试
        </p>
        <div class="contact-box">
            <p>如有问题，请联系系统管理员</p>
        </div>
    </div>
</body>
</html>

